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gtk-demo: Improve markup demo

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Add squiggly underlines and background, and make the markup editable.

https://bugzilla.gnome.org/show_bug.cgi?id=763741
This commit is contained in:
Matthias Clasen 2016-03-16 14:03:44 -04:00
parent 45dfdbce3f
commit 73fe852be0
2 changed files with 69 additions and 6 deletions
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71
demos/gtk-demo/markup.c
View File

@ -8,6 +8,34 @@
#include <gtk/gtk.h>
static GtkWidget *stack;
static GtkWidget *view;
static GtkWidget *view2;
static void
source_toggled (GtkToggleButton *button)
{
if (gtk_toggle_button_get_active (button))
gtk_stack_set_visible_child_name (GTK_STACK (stack), "source");
else
{
GtkTextBuffer *buffer;
GtkTextIter start, end;
gchar *markup;
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
gtk_text_buffer_get_bounds (buffer, &start, &end);
markup = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_insert_markup (buffer, &start, markup, -1);
g_free (markup);
gtk_stack_set_visible_child_name (GTK_STACK (stack), "formatted");
}
}
GtkWidget *
do_markup (GtkWidget *do_widget)
{
@ -15,12 +43,13 @@ do_markup (GtkWidget *do_widget)
if (!window)
{
GtkWidget *view;
GtkWidget *sw;
GtkTextBuffer *buffer;
GtkTextIter iter;
GBytes *bytes;
const gchar *markup;
GtkWidget *header;
GtkWidget *show_source;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
@ -29,19 +58,49 @@ do_markup (GtkWidget *do_widget)
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
stack = gtk_stack_new ();
gtk_widget_show (stack);
gtk_container_add (GTK_CONTAINER (window), stack);
show_source = gtk_check_button_new_with_label ("Source");
gtk_widget_set_valign (show_source, GTK_ALIGN_CENTER);
g_signal_connect (show_source, "toggled", G_CALLBACK (source_toggled), stack);
header = gtk_header_bar_new ();
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), show_source);
gtk_widget_show_all (header);
gtk_window_set_titlebar (GTK_WINDOW (window), header);
gtk_window_set_title (GTK_WINDOW (window), "Markup");
view = gtk_text_view_new ();
gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 10);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 10);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (window), sw);
gtk_container_add (GTK_CONTAINER (sw), view);
gtk_widget_show_all (sw);
gtk_stack_add_named (GTK_STACK (stack), sw, "formatted");
view2 = gtk_text_view_new ();
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view2), GTK_WRAP_WORD);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view2), 10);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view2), 10);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (sw), view2);
gtk_widget_show_all (sw);
gtk_stack_add_named (GTK_STACK (stack), sw, "source");
bytes = g_resources_lookup_data ("/markup/markup.txt", 0, NULL);
markup = (const gchar *)g_bytes_get_data (bytes, NULL);
@ -50,9 +109,13 @@ do_markup (GtkWidget *do_widget)
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_insert_markup (buffer, &iter, markup, -1);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_insert (buffer, &iter, markup, -1);
g_bytes_unref (bytes);
gtk_widget_show_all (sw);
gtk_widget_show (stack);
}
if (!gtk_widget_get_visible (window))

4
demos/gtk-demo/markup.txt
View File

@ -1,9 +1,9 @@
Text sizes: <span size="xx-small">tiny</span> <span size="x-small">very small</span> <span size="small">small</span> <span size="medium">normal</span> <span size="large">large</span> <span size="x-large">very large</span> <span size="xx-large">huge</span>
Text <span color="gray">c<span color="green">o</span>l<span color="tomato">o</span>rs</span>
Text <span color="gray">c<span color="green">o</span>l<span color="tomato">o</span>rs</span> and <span background="pink">backgrounds</span>
Colorful <span underline="low" underline-color="blue"><span underline="double" underline-color="red">under</span>lines</span>
Colorful <span underline="low" underline-color="blue"><span underline="double" underline-color="red">under</span>lines</span> and <span background="pink"><span underline="error">mo</span><span underline="error" underline-color="green">re</span></span>
Colorful <span strikethrough="true" strikethrough-color="magenta">strikethroughs</span>